Mechanism for preparing skins for stitching



L. SARTORE.

MECHANISM FOR PREPARING SKINS' FOR 'smcume.

APPLICATION FILED FEB- l9 92l- PdtentedNov. 14, 1922.

L. SARTORE. MECHANISM FOR PREPARING SKINS FOR STITCHiNG.

M PLICATION FILED FEB; I9. 1921- Patented Nov. 14, 1922.

a SHEETS-SHEEI 2.

, INVENTOR Z 6M1: g; wm a krmm L. SARTORE.

MECHANISM FOR PREPARING SKINS FOR'STITCHING.

APPUCATION FILED F EB. I9, I92!- Patented. Nov. 14, 1922.

3 SHEETS-SHEEI 3- FEB. ID.

FIG. 5. F1116.

INVENTM ZWM cu-Tm Patented Nov. '14, 1922.

Marian *s'rarss AT-Eur entice,

LAURENCE SARTORE, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO v DEGIMO FOGLIA, OF PITTSBURGH, PENNSYLVANIA.

MECHANISM FOR PREPARING SKINS FOR STITCHING.

A ppli cation'filed February 19, 1921. Serial 110. 446,503;

for PreparingSkins for Stitching, of which 1 the following is a specification.' p This invent1on relates to a stitching mechanism for preparing sausage skins for stitching to form bags or cases for sausages oi relatively large size.

It is necessary for sausages of certain sorts that bags or cases of considerable size and strength be provided; In order to make such bags or cases, it is necessary to super-impose two or more layers of the original gut used for making the bags; to split the multipleply material thus'provided; and to stitch it along its edges to form a sausage bag or case oii increased diameter.

The object of the present invention is to provide mechanism for superimposing the layers of gut; for splitting them longitudinally; andfor so mounting the layers thus split that they-are suitably supported for the subsequent stitching operation.

More specific objects of the invention are to providemeanswhereby the several layers of gut may be superimposed without pulling or tearingg and by means of which the layers first applied to the gut holding means are held against wrinkling. during tion of succeeding layers;

In the accompanying drawings Figure 1 is V a side elevation of the mechanism; Figure2 is a front elevation thereof; Figure 3 is a longitudinal section'through the mandrel for receiving the gut; Figure 4 is a cross sectional view therethrough on the line 4L i Fig. 3; Figure 5 1s a front elevation ot the mandrel supportingi brackets of the device;

sectionsofgut to be prepared for stitching,

Figure 6is a fragmentary side elevation of one of such brackets; Figure 7 is an elevation of one of the jointed rods for holding the skins or gut for stitching; Figure 8 is a sectional detail viewon an enlarged scale taken on the line 8-8 Figure 8; Figure 9 is a sectional detail view illustrating the opthe applica- V eration of splitting the onthe mandrel; F lgure 10 1s a fragmentary plan view illus trating in detail a feature of the gut 1101a ing rods; and Figure 11 is a longitudinal sectional view of a portion of one of the rods illustrating the same'in detail.

The mounting means for the device com-- prise a standard 1 to which a' plate 2 is bolted orotherwise suitably secured. On

plateIQ are brackets 3 and 4, which are di- F vided for securing in position themandrel 5,

and which are joined by clamping bolts or thelike. The mandrel 5, over which theugut is drawn to prepare it .for stitching, is a tubular member held immovably in'the brackets'3 and 4. Each of the brackets vis PIOVldGd; with a centrally disposed orifice 6 in which the operating rod 7 is slidably mounted; This operating rod lies within mandrel5 and'extends both, forwardly and rearwardly therebeyo nd. To the forward extremity of rod 7 the mandrel head 8 is screw threaded 7 or otherwise suitably se Y cured. tion that it presents a surface of gen- "erally ovate form for drawing gut there-V I Its rearward extremity is formed to lie closely against over and onto the mandrel.

The head'8 is of such con'forn1a-' theforward extremity of the mandrel proper 5, and is provided with an inwardly extend- 1ng rim or flange '9 to fit over and hold sections of gutwhich'h'ave been drawn into po* sition' on the mandrel.

Mandrel 5 itself is a tubular'member pro-- vided with a channel 10 for receivingthe sec-- tions'll of clamping rods 12. These'rods 12 are formed in twosections 11 and 13, hinged together at ltge'ach of the sections 13 being provided with 'a' plurality of pins 15 ari-anged to enter apertures 16* in the sections 11 when the rods are folded.

VVhen the device is arranged to' receive sections 11 of theitwo rods 12 lie "in the forward extremities of the rod sections 11 are locked in position by means of pins 19, on a washer 19 slidable on the rod 6, and arranged to enter orifices in the extremities of the sections when the washer is forced against the forward extremity of the managainst the sleeve 22 and against the more forwardly of the brackets 3. A set screw 24, which passes through sleeve 22 and bears against mandrel 5, holds the sleeve 22 in operative position.

In this position of the parts, a section of gut may be drawn over mandrel head 8 and mandrel 5 so that it lies thereon, embrac ing the sections 11 of clamping rods 12. This section of gut may then be secured in position on the mandrel by operation of the mandrel head 8.

. Normally the head 8 is held closely against the forward extremity of the mandrel by means of a coiled spring 25, which surrounds the rearward portion of operating rod 6, and which bears against the rearward face of bracket a and against a block 26 adjustably secured to the rod. To the block 26 is secured a lever 27 for operation of the rod 7.

With a section of gut on mandrel 5, the lever 27 is operated to force the rod forwardly against the resistance of spring 25; and the section of gut is smoothed manually and drawn so far along mandrel 5 that only the forward edge thereof projects beyond the forward extremity of the mandrel. Lever 27 is then released, permitting spring 25 to return the head 8 to position. The flange or rim 9 on the head 8 then engages the forward edge of the section of gut on the mandrel to prevent wrinkling of the gut while a succeeding section is being drawn into position. The pins 19 on washer 19'" also reenter the apertures in the forward extremities of the rod sections 11 to secure these sections in position.

The foregoing operation is repeated until two or more layers of gut have been positioned on the mandrel 5. The sections 18 of the rods 12 are then folded over so that the vice, the set screw 24 is loosened and the sleeve 22 forced backwardly against the resistance of coiled spring 23; thus withdrawing clips 21 from the projections on the rear ward extremities of the rod section 11. The rods 12, holding the divided material between them, may then be disengaged and lifted from channel 10 in mandrel 5.

In order that the gut may be held securely by the jointed rods 12, the rodsections are preferably provided with special means for holding them in mutual engagement. As shown in detail in Figures 10 and 11 of the drawings, such means comprise one or more split rings 28 which are set in a countersunk plate 29 secured to a rod section 11 by set screws 30 or the like. On rod sections 13 are one or more pins 31, of greater length and diameter than the pins 15 thereon. These pins 31 are arranged to match with split rings 28, and have a diameter slightly greater than the internal diameter of such rings. When, therefore, the rod sections are brought into mutual engagement to clamp and hold gut therebetween; these pins enter and spread the split rings 28 so that the pins, and the rod sections 13 which carry them, are securely held to the rod sections 11. The pins 31 are preferably made of such length that they pass completely through rod sections 11 and enter apertures 32 in the mandrel 5.

The gut is then in two or more. layers which are held along their edges by the rods 12; and when spread out is in condition. for stitching by suitable mechanism, such as that described and claimed in copending application Serial. No. 146,502, filed February 19, 1921, to form a sausage bag or case formed of a double thickness of gut and of a diameter greater than that of'a single section of gut.

If desired, a section of cloth may be used instead of one of the sections of gut for the purpose of increasing the, strength and 00-. hesive qualities of thesausage case to be obtained as a final product. Also, instead of a simple section of gut, a previously formed case may be clamped between the rod sections and cut on the mandrel in preparation for stitching. In this manner'strips of material may readily be prepared for stitching into bags or cases of very large size. It will be seen that with a mandrel of a. size suitable for preparing the original gut, such previously formed cases will not stretch over the mandrel. This is of no importance, however, as it is only in the case of natural .sections of gut that the stretching and smoothing effect is necessary.

As a number of modifications may be I made in the form and arrangement of the parts illustrated and described without departing from thespirit of the present invention, the scope of the invention is to be which comprises a gut receiving .ma'ndrel,

and a movable mandrel 'head; arranged to secure a section of gut thereon. I 1

2. i device for preparing gut for stitching into bags or cases of increased diameter which comprises a gut receiving mandrel, a movable mandrel head, means for extending said head, and resilient means for holding the head in contact with the extremity ofthe mandrel to secure a section of gut thereon.

8. A device for preparing gut for stitching into bags or cases of increased diameter which comprises a tubular gut receiving mandrel, an operating rod passing through said mandrel, a head provided with gut securing means on the forward extremity of said rod, resilient means for normally maintaining said rod in retracted position, and means for extending said rod against the resistance of said resilient means.

l. A device for preparing gut for stitching into bags or cases of increased diameter comprising a gut receiving mandrel having a channel therein, gut holding rods arranged to lie in said channel, and a movable mandrel head arranged to secure a section of gut on said mandrel.

5. A device for preparing gut for stitching into bags or cases of increased diameter comprising a gut receiving mandrel having a channel therein, gut holding rods arranged to lie in said channel, a movable mandrel head, means for extending said head, and resilient means for holding the head in contact with the extremity of the mandrel to secure a section of gut thereon.

6. A-device for preparing gut for stitching into bags orcases of increased diameter which comprises a tubular gut receiving mandrel having a channel therein, an operating rod passing through said mandrel, a head provided with gut securing means on the forward extremity of said rod, resilient means for normally maintaining said rod inv retracted position, and means for extending,

said rod against the resistance of said resilient means.

7. A device for preparing gut for stitching into bags or cases of increased diameter which comprises a gut receiving mandrel, gut holding rods thereon, means on said mandrel for securing the rearward extremity of said rods in position, and a movable mandrel head arranged to securea section of gut on said mandrel and to secure the forward extremity of said rods thereon.

8. A device for preparing gut for stitchmg into bags or cases of increased diameter which comprises a gut receiving mandrel, gut holding rods thereon, means on said mandrel togsecurel a section of gut thereon,

mandrel for securing the rearward extrem ity of-saidrods in-position, a movable mandrel;head,fresilient means for holding said head-in contactywith the extremity, of the and means for securing the forwardextreinitiesy Lt' said rods inposition.

9. jdevicefor;preparing gut for jstitch ing into bags or cases of increased diameter which comprises a tubular gut receiving mandrel, gut holding rods thereon, means on said mandrel for securing the rearward extremity of said rods in position, an operat ing rod passing throughsaid mandrel, a head provided withgut securing means on the forward extremity of said rod, resilient means for normally maintaining said operating rod in retracted position, means for extending said operating rodagainst the resistance of said resilient means, and means 5 for securing the forward extremities of said gut holding rods in position.

10. A device for preparing gut for stitch-" ing into bags or cases of increased diameter which comprises a gut receiving mandrel, jointed gut holding rods havingone section thereof extending longitudinally of said mandrel, means for securing said sections on the mandrel, and means for supporting the other sections of said rods.

i 11, Adevice for preparing gut for stitching into bags orcases of increased diameter which comprises a gut receiving mandrel, I jointed gut holding rods having onesection thereof extending longitudinally of said mandrel, means on said mandrel for securing the rod sections in position thereon, a movable mandrel head arranged to securea s'ection of gut on said mandrel, and means for supporting the other sections of said rods.

12. A device for preparing gut for stitching into bags or cases ofincreased' diameter which comprises a gut receiving mandrel, jointed gut holdingrods havingv one i section thereof" extending longitudinally of said mandrel, means on said mandrel for securing the rearward extremities of said sections in position thereon, a. movable mandrel head, resilient means for holding the mandrel to secure asection of gut there- 011, means for securing the forward extremi-.

ties of said rod sections in position on the mandrel, and means for supporting the'other sections of said rods. I i

13. A device for preparing gut for'stitching into bags or cases of increased diameter which comprises a tubular gut receiving mandrel, jointed gut holding rods having one section thereof extending longitudinally of said mandrel, means on said mandrel for securing the rearward extremities of said sections in ,posltion thereon, an operating rod passing through said mandrel, a head provided with gut securing means on the .130 i egg 1,435,503

forward extremity 'of said operating rod, resilient neens for normally maintaining said operating rod in retracted position, means for extending said operating rod against the resistance of said resilient means, means on said head for securing the forward extremities of such sections of the gut holding rods .on said mandrel, and means for supporting the other sections of said rods. 10 In witness whereof, I hereunto set my hand. I LAUREN-(JESARTORE.

Witnesses:

FLORENCE- F. SCHWAR Z, WILLLA B. 'Wl IARTQN. 

